Module I: Basic Electrical Principles
Metric System terms and relationships
Basic AC and DC concepts
Voltage, Current and Resistance definitions
Calculations using Ohms Law
Series and parallel circuits as they apply to the local telephone copper loop.
Capacitance, Inductance and Impedance as they apply to the telephone copper loop.
Power calculations and telephone circuit applications.
Noise definition and application in the telephone loop.
Module II: Basic Telephony
Voice Frequency definition and C-Message weighting
Telephone set operation and customer requirements.
48VDC voltage and ringing voltage applies to the Tip and Ring loop.
Outside Plant aerial and buried plant components.
Copper cable transmission characteristics and signal loss.
Outside plant power influence and noise.
MDF (Main Distributing Frame) terminal blocks and protection (i.e.: gas tubes).
Relay Rack layout, counting and shelf assignments.
Cable color code identification.
Safety and security related to Central Offices and company vehicles.
Module III: Central Office Power
Commercial AC Power components and characteristics including single- and 3-phase.
Multi-Grounded Neutral application.
Central Office Main AC disconnect.
AC Surge Arrestor application.
Standby Generator and Transfer Panel operation.
Central Office battery description and application.
DC powerboard, and fuse and breaker operation.
DC power distribution, fuse panels and breaker panels.
DC Power cable ampacity ratings and load limitations.
Module IV: Central Office Grounding and Protection
Grounding theory and practical applications.
Master Ground Bar connections
Ground Window Bar connections.
AC MGN ground connection.
Central Office ground grid connections.
Radio Tower ground connections.
Module V: Basic Digital Concepts, DS0 - DS3
Numbering systems currently used in telecommunications transmission.
Channel Bank operation and Analog-to-Digital conversion.
DS1 description and applications (T1 copper span lines, HDSL, DSX-1 crossconnects and Central Office DS1 cabling.
DS1 line coding (AMI or B8ZS) and signaling format (SD or ESF).
DS3 description and applications.
DS3 MUX operation.
Module VI: Digital Switch Basics
Basic Digital Switch hierarchy and operation.
Digital Switch line and trunk interfaces.
Base Unit and Remote operation and links.
SS7 network components and operation including A-links from Digital Switches.
Module VII: Special Circuits
DS0 description and applications (POTS, Analog Data, Digital Data including 2.4K-to-56K, 64K, Fractional-T1, ISDN with 2B1Q line coding, Frame Relay and ATM applications.
T1 and T3 HiCap circuits and applications.
Special Circuit number description.
Special Circuit test & acceptance requirements.
Module VIII: Fiber Optics Basics
Fiber Optic technology theory and application to the telecommunications network.
LED and LASER operation and applications.
Single-Mode and Multi-Mode applications.
Fiber cable operation and applications.
Fiber Optic MUX, Terminal and DCS applications.
SONET theory and applications.
OC-3, OC-12 and OC-48 terminal equipment.
Fiber Optic Ring technology and application.
Module IX: Network Synchronization
Central Office digital timing source (BITS Clock) application.
Stratum-1, -2 and -3 clock reference applications.
Central Office equipment timing reference requirements.